Holddown.



{fwd- 6% Md A. c. SPENCER.

HOLDD'OWN.

APPLICATION FILED NOV-8| 1913.

1,150,072.` PatentedAug. 17,1915.-

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envien o. SPENCER, or EEvERLY, MASSACHUSETTS, AssieNoR To UNITED SHOE MACHINERY coiarANY, 0E PETERSON, NEW JERSEY, A CORPORATION oE NEW JERSEY.

n'oLiJnowN.

Specification of Letters Patent.

Application filed November 8, 1913i Serial No. 799,914.

.T0 all whom it may concern:

Be it known that L. ALvAH C; SPENCER, a citizen of the lnited' States, residing at Beverly,`in the county of Essex and State vof Massachusetts, have invented certain Improvements in l-lo'lddowns, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

rlhis invention relates to lasting machines of the bed 'type and particularly to work holding mechanisms or hold-downs for such machines. ln these machines the shoe is supported Vin inverted position and it has been found desirable to provide means to engage the forepart of the shoe bottom to hold the shoe upon the support or toe rest which is provided beneath thatvportion of the shoe.l It is also' important to hold the toe end of .the innersole down uponthe last bottonito extending forwardly from said end of thel bar into position yto hold the toe endof the innersole down upon the last bottom/,f as

more'vfully set fort-h in United States Letters Patent No. 1,120,822, granted Decemk ber l5, 191e, on application ofE. L. Keyes.

' lasts having varying degrees of spring, thev fingers yielding sufficiently to perform. that The fspring of the last, that is, the longitudinal inclination of the forepart of the,4 last relatively to the heeli part, causes a wide variation in the relative vertical positions of the last bottom at the ball of the `lastand at the toe where the finger engages thein .nersole and therefore the toe holding fingers; have been made ,of resilient metal in ordery to ada-pt them to hold down an innersole onl for the purpose above pointed outand" yet `hold the innersole down firmly, as a spring of different styles'of lasts.

For these purposes f result the fingers in com-mon use break fre-y quently landvsuoh. breakage ris a source of delay and expense. v

It is the objectofthis .invention to pro-A vide aI hold-down which will eliminate thisV breakage of fingers and will provide -means Patented Aug. i7, ieio.v

by which ak substantially uniform holding pressure can be obtained at the toes of lasts having diiferent degrees of spring.

An important feature of the inventioncomprises in combination a carrier adapted to extendv transversely of the -last and a hold- `down foot or finger mounted thereon, and" means whereby they hold-down finger can. 'be resiliently hel-d for positioning movement in a vertical plane toy adapt Vit to the Preferably the finger is given su'fiicient downward inclina-tion to suit ,lasts of `evtreme spring while applying sufficient holding pressurey thereto, and resilienty connections are provided between the finger and the carrier to V'permit the finger to yield to accommodate lasts having little or` nol spring. Ashereinshown, the foot member or finger is connected to the [carrier by `a bar which is mounted to rotate in the carrier about its -V longitudinal axisand has afresilient connection with the carrier which will permitit to vturn in response to upward pressure or resistance tofdownward movement of the free en'd oftheinner sole engaging finger.

The invention will now be described in y connectionwith the accompanying drawings and their in the claims will be pointed out the combinations which it is intended to protect by this patent..v f K Figurewl is a perspective view ofthe im"- proved hold-down mechanism embodyingV this invention, together with the parts of Ythe bed lasting machine which'are located adjacent to thetoe; Fig. 2 is a detail, partly inv section, of the kconnect-ion of the kholddown finger tol the rotatably mounted bar; .Fig 3 is 'a perspective view, partly in section, of the connection of the rotatably` mounted finger carrying, bar. to thefholdl ln the idrawingfFig. l shfowsf at A lthe wipers of av bed lasting. machine withv relation tothe toe cfa shoe being lasted. At

down and operating mechanism; Fig. 4 isa .sectionall detail of Fig. 3.

Bisshown kthe toe rest of the machine upon Aist device. The hold-down comprises a vertical post 2 which is guided for vertical movement inthe frame' of the machine and which is depressed by means of a treadle, such, Vfor example, as that shown and described in the patent to Keyes above referred to. Upon the upper end of the post 2 is a block 4 which is bored( in directions at right angles to each other for the reception respectively ofthe vertical post 2 and a horizontal bar 6 which is rotatable upon its own aXis in the block. The bar 6 carries at its forward end a Enger 10 which is held in the bar by a stud 12, Fig.f2, which may be formcdon or attached to the finger 10. The stud 12 is provided with a circumferential groove 14 which is engaged by a spring-pressed detent 16 sliding in the bar 6 for retaining the stud in place in the bar. The stud 12 has a tapered portion 15 which actsagainst the spring-pressed detent 16 to retract the same as the stud is pushed into place. The detent 16 may be retracted-to permit removal of the stud and finger for interchange or replacement by means of a pin 20 which projects through a slot in the side lof .the bar, Fig. 1. The rear end of the bar which, as stated, is rotatable 'in the block 4, is provided with means, best shown in Figs. 3 and 4, for yieldingly turning it in the direction for holding the toe engaging Vportion of the finger 10 resiliently against the innersole. lTo this end the rear portion of the bar 6 projects through a recess in block-4, see Fig. 3, and has opposite sides iiattened to form a non-rotatable vconnection with a lateral arm 24 in which there is a spring-pressed plunger 26, Fig. 4, which engages a recess in the bar 6. The lateral arm 24 is normally held down against a stop face 32 formed on the block 4 by a relatively stiff spring 34 secured to the block 4 at 36 and engaging the hooked end 38 of the arm 24. It will now be understood that downward movement of the post 2 will bring the end ofthe downwardly inclined finger 10 into contact with the toe portion of the innersole of the shoe, and that the nger will yield in a clockwise direction, thebar 6 being rotated and tension applied to the spring 34 as the member 24 is forced away from the stop 32. Evidently also the spring 34 may be extended sufliciently to'take care of variations in the spring of the lastwithout varying the tension on the spring to a substantial extent, the spring being normally under the minimum working tension required for lasts of'extreme spring. The described separable connections between the ybar 6 and the linger 10 and arm 24 permit any one of these parts of the hold-down device ktovbe replaced without the expense of replacing the entire device. It will be noted that ythe bar 6 is in the naturev of a rockshaft having the arm-24 to which the power is applied by the spring 34 and the holddown finger 10 constituting the other arm for applying pressure yieldingly upon the toe of the innersole while the finger supporte ing end of the bar 6 is being brought into clamping engagement with the ball portion of the shoe.

It is obvious that various mechanical embodiments of this invention may be provided for accomplishing the objects stated and it is intended to embrace functional equivalents within the scope ofthe following claiming clauses which set forth what l regard as new and of my invention.

v l claimv 1. In a hold-down for lasting machines,

the combination withv a hold-down linger, of

accommodate lasts having little or no spring.

3. A. hold-down for lasting machines having, in combination, a finger for engaging the toe portion of a shoe, a mounting for the finger, a carrier for the mounting, and resilient means between the mounting and the carrier which will yield to excessive upward pressure upon the finger.

4. A hold-down for lasting machines,hav ing a vertically movable post, a bar extending laterally of the shoe and rotatably mounted relatively to said post, a holddown finger projecting laterally from one end of said bar, an arm projecting from the said bar, a stop for said arm, and resilient connections between the arm and the post for holding the arm down.

'5. ln a hold-down mechanism for lasting machines, the combination with arvertically movable post, Yof a hold-down device connected thereto for bodily movement into clamping engagement with the forepartv of a shoe bottom and comprising a rock-shaft having an innersole toe engaging finger constituting one arm thereof, a second arm, and means acting through the second arm to hold i the rock-shaft yieldingly in annular position for the finger to engage the toe of the inne'rsole before the ball portion thereof is clamped.

6. In a hold-down mechanism for lasting machines, the combination with a vertically movable post, of a hold-down device connected thereto for bodily movement into clamping engagement with the forepart of a shoe bottom and comprising a bar having an innersole engaging finger extending laterally from the bar and constructed and arranged to produce torsional strain on the bar by engaging the toe kof the innersole in advance ofthe clamping engagement of the device with the ball of the shoe, said device including means located betweenthe point of attachment of the finger to the bar and said vertically movable part for resisting the torsional strain yieldingly.

7. ln a hold-down mechanism for lasting machines, the combination with a vertically movable part, of a hold-down device connected thereto for bodily movement into clamping engagement with the forepart of a shoe and comprising a bar rotatably connected with said vertically movable part, a hold-down finger, -a separable stud and socket and spring detent connection between the bar and linger, an arm and spring Athrough which rotary movement of the bar is resisted, and a separable connection between thc bar and arm comprising opposed flattened faces on the bar, a fork on the arm fitting said flattened faces and a spring detent having interlocking engagement with the arm and bar, all arranged to'permit the bar, finger and karm to be separately replaced.

S. A lasting vmachine hold-down comprising, in combination, a carrier movable into and out. of an operative position where it extends transversely across a shoe supported in the lasting machine, a hold-down foot member supported on the carrier, and means constructed and arranged to resist yieldingly the movement of the foot member in ra vertical plane required when the `foot member adapts itself during use to the kspring of dierent styles of lasts.

9. A lasting machine hold-down comprisy ing a carrier movable into and out of an 0perative position where 1t extends transversely across a shoe supported 1n the lasting machine, afoot member which is formed at its front end to engage the toe ofa welt shoe innersole against the inner side of the lip, a connector attaching the rear end of said foot member tothe carrier, and means operating to hold the front end of the foot member normally depressed in a position where said member will engage the innersole iirst by said front end and will yield as the carrier is further depressed after such rst engagement of thek foot member with the innersole occurs.

10. A lasting machine hold-down comprising a carrier movable into and out of an operative position where it extends transversely across a shoe supported in the lasting machine, a foot member which is formed at its front end to engage the toe of a welt shoe innersole, a connector to which the rear endof the foot member is attached and which is rotatable in the carrier about an axis extending horizontally through the carrier, and a spring arranged between the connector and the carrier and operating to hold the front end of the foot .member depressed and to relieve strain on the connectorand carrierwhen the front end of the foot member is forced upwardly relatively to the carrier by engagement with the work.

11. A lasting machine hold-down comprising a rigid carrier movable into and out of an operative position where it extends transversely across a shoe supported in the lasting machine, a resilient foot member which is formed at its front to engage the toe of a shoe innersole and extends obliquely Y upward and backwardyto the carrier in a relation requiring it to be 'bent or sprung to allow holding down pressure to beapplied to the shoe bottom back of the toe, a connector to which the foot member is attached and which is rotatable in the carrier, and a n spring arranged to relievethe foot member, yconnector and carrier from excessive strain when pressure 1s applied to the bottom of a shoe back of the toe.

Copies of this patent may be obtained for ve cents each, by` addressing" the Gommissioner'of Patents,

Washington, D. C.

It is hereby certified that in Letters Patent No. 1,150,072, granted August 17, 1915, upon the application of Alvah C. Spencer, of Beverly, Massachusetts, for an improvement in Holddowns, errors appear inthe printed sfpecifcation requiring correction as follows: Page 2, line 122, claim 5, for the Wordannular read angular; page 3, lines 10, 14, and 18, claims 6 and 7, for the Word part read post; and that the said ,Letters Patent should be read with these oorreetionev therein that the same may conform to the record of the case in the Patent Oce.

Signed and sealed this 14th day of March, A. D., 1916.

[SEAL] J. T. NEWTON,

Acting Commissioner of Patents. C1. 12-14. 

